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109639 (2001 RA)
Classification: Main-belt Asteroid          SPK-ID: 2109639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09307488771337265 5.0804e-08  
a 2.66233706004487 1.591e-08 au
q 2.414540337126043 1.3383e-07 au
i 20.92921572119892 5.6945e-06 deg
node 242.467413493884 1.581e-05 deg
peri 233.3161349539363 4.45e-05 deg
M 41.53395081610766 3.8925e-05 deg
tp 2458817.439886693781
(2019-Nov-29.93988669)
0.00017155 TDB
period 1586.693283333911
4.34
1.4223e-05
3.894e-08
d
yr
n .2268869502261831 2.0338e-09 deg/d
Q 2.910133782963697 1.7391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      6732 days (18.43 yr)  
   first obs. used      2001-08-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:29:52  

Additional Information
 Earth MOID = 1.47411 au 
 Jupiter MOID = 2.45621 au 
 T_jup = 3.285 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO459513  

109639 (2001 RA)          Discovered 2001-Sep-02 by Hug, G. at Farpoint
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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